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W. A. BARLOW.

Heating Stove- Patented Jany 1, 1867.

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WILLIAM A. BARLOW, or nLKHonu, WISCONSIN. Letters Patent No. 60,845, dated January 1, 1867.

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To ALL Wl iOb/LI'I MAY CONCERN:

Be it known that 1, WILLIAM A. BARLOW, of Elkhorn, inthe county of Walworth, and State of Wisconsin, have invented an improved Stove; and I do hereby declare that the following is a full and exact description thereof, ref-g-renoc being had to the accompanying drawings, making part of this specification-- 4 Figure 1 being a central vertical section of a heating stove, constructed with my improvements.

Figure 2, a horizontal section thereof", in 9; plane indicated by the line a: :t', fig. 1.

Figure 3, a horizontal scction ofthc same, in a plane indicated by the line 3/ y, fig. 1.

Like letters designate corresponding parts in all of the figures,

My first improvement consists in the employment of a deflecting plate, 13, located in the body A of the stove, above the fire pot or chamber, ti, said deflecting plate being provided with an air pipe or pipes, C, to bring a free supply of fresh air from outside oi the stove, through its top to the lower side thereof. The drawings represent the general arrangement of these parts. Around the edge of this plate there is suilicientspace to allow a free circulation of the products of combustion upward around it. It is represented as concave on the. under side, and round in outline, and this form I prefer; but it may be plane or convex, downward, or otherwise may differ from the form and outline shown, without departing from the essential feature of the invention. Its use is to arrest the smoke and products of combustion as they rise from the fuel, and, by supplying fresh air freely thereto, to consume the smoke and make the combustion perfect, as well as to cause the heat to radiate more abundantly from that part of the stove. Especially is this feature valuable in stoves for burning bituminous coal, which is gasified so rapidly, and, unless a large supply of oxygen is furnished in the draught, sends oil large quantities of unconsumcd carbonaceous matter, to be deposited in the smoke pipe and chimney. But this feature, in a great measure, obviates these disadvantages. Before the air is brought in through the pipe or pipes C, it may circulate inside of an exterior casing of the stove, or may be brought along the surface of the stove, for any distance, in apassage, as represented by blue lines in fig. 1, or in any other manner desired- The next feature of my invention consists in the employment of a pipe or fine, D, extending downward into the body of the stove, incombination with an air-circulating chamber, E, around it. The general form in which I apply this feature is represented in the drawings, but it may varythcrcfrom, as desired, provided the substantial resultis the same. .This arrangement of a downwardly-projecting interior pipe or flue, and aircirculating chamber around it, leavesaspacc, a, in the upper part of the stove body-A, around them, for the heated products to arise and circulate in,'bcfore escaping by the smoke pipe; and thus more heat is radiated from that part of the stove. Another important advantage is, that the products of combustion, after rising into the space a, must again descend, and then turn abruptly round upward into the pipe D. By this action, the soot and unconsumed carbonaceous matter are driven down upon the burning fuel and consumed, so that thereby a much cleaner combustion takes place. Besides, the circulation of the air in the chamber E greatly increases the heating power oi the stove, and reduces the waste of heat passing of? in the draught. The chamber E continues up into or communicates with the space under the cover H, and perforations f f in the cover allow the heated air to flow freely out into the room. Air may be admitted into the chamber E, near the bottom, by one or more pipes or openings leading from outside of the stove, or in any other suitable manner. The case of the chamber'E protects the pipe D fromburning out, and its own enlargcd surface is not so liable to extreme heating and injury thereby; besides, comparatively cool air circulates in contact 'with its ownsurface' and that of the pipe D, so that there is very little liability of burning these parts away. Instead of the single pipe or flue D, there may be two or more, with a like effect. It is not essential that the air should be brought down through the deflecting plate B; it may be introduced along the under side thereof, the only requisite being that the air should be supplied and distributed from the pipes under the plate. It is obvious that more than one deflecting plate might be used, especially by placing one above another; and I'contemplate, as a modification, a succession of central and annular plates, one above or beyond another, so as thereby to extend the circulation alternately inwardand outward, as far as practicable or desirable. These improvements may be employed in stoves having ascending and descending flues betwecn'the top and the base thereof.

I do not claim a. more deflecting plate, nor letting in air through small perforations in such a plate, since the air is not introduced thereby in suflicient body at one place, nor with sufiicient force, to keep thepassages clear, and hence they are comparatively inoperative in such a connection; but what I Claim as my invention, and desire to secure by Letters Patent, is

A deflecting plateB, in combination with one or more air-supplying pipes G, arranged and operating substantially as and for the purpose herein specified.

'In combination with the foregoing, I also claim the interior downwardly-extending pipe or flue, D, and an air-circulating chamber, E, surrounding said pipe or flue, substantially as and for the purpose herein set forth.

WM; A. BARLOW.

Witnesses:

J. S. BROWN, THOMAS PARKER. 

